Trek
Trek Fuel EX 8 Gen 7
$3799.99
Released 2026
Best Mountain Bikes · head-to-head
Trek Fuel EX 8 Gen 7 vs Specialized Stumpjumper 15 Alloy
A sourced, side-by-side comparison. Specialized Stumpjumper 15 Alloy is cheaper at $3000. Every spec and price links to its source.
Specialized
Specialized Stumpjumper 15 Alloy
$3000Cheaper
Released 2025
Which is better: the Trek Fuel EX 8 Gen 7 or Specialized Stumpjumper 15 Alloy?
The Specialized Stumpjumper 15 Alloy wins 1 of the 1 specs we compare head to head; the other wins 0. The Specialized Stumpjumper 15 Alloy is the cheaper at $3000. The Specialized Stumpjumper 15 Alloy both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Trek Fuel EX 8 Gen 7 | Specialized Stumpjumper 15 Alloy |
|---|---|---|
| US price | $3799.99 | $3000 |
| Brand | Trek | Specialized |
| Released | 2026 | 2025 |
| Frame material | Alpha NEXT Platinum Aluminum | M5 Alloy |
| Wheel size | 29" | 29" (MX 27.5" rear compatible) |
| Fork travel (mm) | 150 | 150 |
| Rear travel (mm) | 145 | 145 |
| Suspension type | ABP (Active Braking Pivot) | Horst-link (FSR) |
| Drivetrain speeds | 12 | 12 |
| Groupset | SRAM Eagle 70 | Shimano Deore M6100 |
| Brake type | SRAM DB8, 4-piston hydraulic disc | Shimano BR-MT420, 4-piston hydraulic disc |
| Weight (lb) | 37.2 | 36.53 |
Sources — Trek Fuel EX 8 Gen 7: bikeexchange.com (verified 2026-08-01). Specialized Stumpjumper 15 Alloy: bikeradar.com (verified 2026-08-01).
What's the difference between the Trek Fuel EX 8 Gen 7 and Specialized Stumpjumper 15 Alloy?
Where the two actually differ on the specs we track (6 of 9). Matching specs are omitted.
- Frame material: Trek Fuel EX 8 Gen 7 Alpha NEXT Platinum Aluminum vs Specialized Stumpjumper 15 Alloy M5 Alloy
- Wheel size: Trek Fuel EX 8 Gen 7 29" vs Specialized Stumpjumper 15 Alloy 29" (MX 27.5" rear compatible)
- Suspension type: Trek Fuel EX 8 Gen 7 ABP (Active Braking Pivot) vs Specialized Stumpjumper 15 Alloy Horst-link (FSR)
- Groupset: Trek Fuel EX 8 Gen 7 SRAM Eagle 70 vs Specialized Stumpjumper 15 Alloy Shimano Deore M6100
- Brake type: Trek Fuel EX 8 Gen 7 SRAM DB8, 4-piston hydraulic disc vs Specialized Stumpjumper 15 Alloy Shimano BR-MT420, 4-piston hydraulic disc
- Weight (lb): Trek Fuel EX 8 Gen 7 37.2 vs Specialized Stumpjumper 15 Alloy 36.53